Theorem REF  exhibits a Dean word with critical exponent 2
that avoids 6 factors of length 3.
In this section, we complement this result by considering the trade-off between
the critical exponent of an infinite Dean word and the number of avoided factors of length 3.
Negative results are obtained by standard backtracking. Positive results
are proved by uniform morphisms that generate infinite Dean words with suitable properties
using the method described in [1]}.
